For buyers who want to subscribe to wireless service contracts, AT&T is offering the Galaxy S6 at $200 on subscription to a two-year contract.

Alternatively, customers can also choose to opt-in to AT&T's Next installment plan, subscribing to which buyers can purchase the smartphone by paying equated monthly instalments of $22.84 for 30 months.

An off-contract Samsung Galaxy S6 costs a whopping $685, to buy from AT&T.

The above prices are applicable to the 32GB variant of Galaxy S6.

AT&T also has the 64GB variant of the smartphone up for pre-order, and the price starts from $300 with contracts. Customised AT&T installment plans are also available.

An unlocked 64GB Samsung Galaxy S6 costs $785.

A 128 GB Galaxy S6 variant is also available for pre-order from AT&T. Prices are as follows: